FEATURE EXTRACTION METHOD OF SOUND SIGNAL TO ROLLING BEARING BASED ON BLIND SOURCE SEPARATION AND MORLET WAVELET

It is a new method of sound signal testing and analysis,but the SNR is too low,so we raise a feature extraction method of sound signal to rolling bearing based on blind source separation and adaptive Morlet wavelet. Firstly,the wavelet packet is used to change the single channel of the voice signal...

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Main Authors: LI JingJiao, CHEN EnLi, LIU YongQiang
Formato: Artigo
Idioma:Chinês
Publicado em: Editorial Office of Journal of Mechanical Strength 2018-01-01
Colecção:Jixie qiangdu
Assuntos:
Sound signal
BSS
Wavelet transform
Shannon entropy
Fault diagnosis
Acesso em linha:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.03.004
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